Thread coupling for drill string elements for percussion drilling

Application number :: 66092
Application type :: Standard
Application status :: CEASED
Under opposition :: No
Proceeding type :
Invention title :: Thread coupling for drill string elements for percussion drilling
Inventor :: Kangas, Karl Erik ; Nordfeldt, Leif
Agent name :: WATERMARK PATENT AND TRADE MARKS ATTORNEYS
Address for service :: Level 2 302 Burwood Road HAWTHORN VIC 3122
Filing date :: 30 June 1994
Associated companies :
Applicant name :: Uniroc AB
Applicant address :: Box 521 S-737 25 Fagersta Sweden
Old name :
Original Source :: Go

Thread coupling for drill string elements for percussion drilling A Standard patent application filed on 30 June 1994 credited to Kangas, Karl Erik ; Nordfeldt, Leif